 It's an inexpensive way to do it. You load the insulation with that. You could put that foil. You're going to drop that temperature down pretty quick. So I would even go as far as to say this. If you're getting a new roof, it would probably – I have never done the math, but it probably wouldn't take that long to pay for it if you would have them strip all the plywood off the roof and put that foil down because you eliminate the opportunity for a microclimate. You're not trapping moisture in the attic.